Table 1.
Demographic characteristics and task behavior of the study sample
Cocaine Females (n=14) |
Cocaine Males (n=14) |
Control Females (n=11) |
Control Males (n=14) |
Effect | P | ||
---|---|---|---|---|---|---|---|
Age, y | Diagnosis | 0.04 | |||||
44±2 | 44±1 | 40±3 | 40±1 | Sex | 0.97 | ||
Diagnosis × Sex | 0.94 | ||||||
Race, No. African-American/Caucasian/Hispanic | Diagnosis | 0.08 | |||||
12/2/0 | 12/2/0 | 9/1/1 | 10/1/3 | Sex | 0.65 | ||
Diagnosis × Sex | -- | ||||||
Education, y | Diagnosis | 0.08 | |||||
13±0 | 13±0 | 14±1 | 14±0 | Sex | 0.39 | ||
Diagnosis × Sex | 0.69 | ||||||
Socioeconomic Status: Hollingshead Index | Diagnosis | 0.21 | |||||
33±2 | 33±3 | 38±6 | 36±3 | Sex | 0.84 | ||
Diagnosis × Sex | 0.80 | ||||||
Verbal IQ: Wide Range Achievement Test III – Reading Scale |
Diagnosis | 0.82 | |||||
96±5 | 94±3 | 97±3 | 95±3 | Sex | 0.53 | ||
Diagnosis × Sex | 0.87 | ||||||
Nonverbal IQ: Wechsler Abbreviated Scale of Intelligence – Matrix Reasoning Scale |
Diagnosis | 0.09 | |||||
9±1 | 9±1 | 11±1 | 10±1 | Sex | 0.47 | ||
Diagnosis × Sex | 0.65 | ||||||
Depressive Symptoms: Beck Depression Inventory II | Diagnosis | 0.005 | |||||
5±1 | 5±1 | 2±1 | 3±1 | Sex | 0.60 | ||
Diagnosis × Sex | 0.47 | ||||||
Task Behavior: Average Correct a | 50¢: | 17±1 | 16±1 | 15±1 | 16±1 | Diagnosis | 0.65 |
0¢: | 16±1 | 15±1 | 14±1 | 14±1 | Sex | 0.19 | |
50¢>0¢: | 1±1 | 1±1 | 1±1 | 2±1 | Diagnosis × Sex | 0.19 | |
Task Behavior: RT Correct (ms) a | 50¢: | 256±4 | 258±4 | 275±5 | 263±5 | Diagnosis | 0.92 |
0¢: | 254±5 | 260±4 | 266±6 | 272±6 | Sex | 0.01 | |
50¢>0¢: | 2±4 | −2±3 | 10±5 | −9±5 | Diagnosis × Sex | 0.09 | |
Craving: Cocaine Wanting (Task>Baseline) a,b | Task: | 1.4±0.6 | 1.6±0.7 | 0.0±0.0 | 0.0±0.0 | Diagnosis | 0.009 |
Baseline: | 0.7±0.4 | 1.5±0.7 | 0.2±0.2 | 0.2±0.2 | Sex | 0.26 | |
Task>Baseline: | 0.7±0.5 | −0.1±0.1 | −0.2±0.2 | −0.2±0.2 | Diagnosis × Sex | 0.07 |
Values are frequencies or means + standard error of the mean (SEM) unless otherwise specified;
Analysis of covariance on the differentials (50¢>0¢ or Task>Baseline), controlling for age and BDI scores;
One outlier (cocaine dependent male) was removed from this analysis (Cook’s d>1).